Excursion 2WD V10-6.8L VIN Z CNG (2003)
6. Lift the fuel charging wiring off the valve cover studs.
7. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools
cause scratches and gouges which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.
NOTE: The intake manifold is shown removed for clarity. The bolts are part of the valve cover and should not be removed.
Remove the LH valve cover.
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Fully loosen the bolts and remove the valve cover.
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Inspect the valve cover gasket and clean the mating surface of the cylinder head.
Installation
1. NOTE: If not secured within four minutes, the sealant must be removed and the sealing area cleaned with metal surface cleaner. Allow to dry
until there is no sign of wetness, or four minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
Apply a bead of silicone gasket and sealant in two places where the engine front cover meets the cylinder head.